As wildfire smoke from Canadian blazes continues to degrade air quality across large parts of the United States, health ...

As multiple wildfires burn across Canada and the western U.S., millions are being exposed to the dangers of smoke inhalation.

Face masks can help to reduce transmission of respiratory viruses such as influenza, according to experts and medical evidence, but their effectiveness depends on the type of mask used. Social media ...

Recently, a review from the Cochrane Library set off a firestorm after headlines declared research published by the respected organization's study found masks don't work and don't stop community ...